Render cached pipeline status on project dashboard

app/helpers/ci_status_helper.rb

@@ -59,6 +59,20 @@ module CiStatusHelper
     custom_icon(icon_name)
   end
 
+  def render_project_pipeline_status(pipeline_status, tooltip_placement: 'auto left')
+    project = pipeline_status.project
+    path = pipelines_namespace_project_commit_path(
+      project.namespace,
+      project,
+      pipeline_status.sha)
+
+    render_status_with_link(
+      'commit',
+      pipeline_status.status,
+      path,
+      tooltip_placement: tooltip_placement)
+  end
+
   def render_commit_status(commit, ref: nil, tooltip_placement: 'auto left')
     project = commit.project
     path = pipelines_namespace_project_commit_path(

app/models/project.rb

@@ -1209,6 +1209,10 @@ class Project < ActiveRecord::Base
     end
   end
 
+  def pipeline_status
+    @pipeline_status ||= Ci::PipelineStatus.load_for_project(self)
+  end
+
   def mark_import_as_failed(error_message)
     original_errors = errors.dup
     sanitized_message = Gitlab::UrlSanitizer.sanitize(error_message)

app/views/shared/projects/_project.html.haml

@@ -7,16 +7,16 @@
 - show_last_commit_as_description = false unless local_assigns[:show_last_commit_as_description] == true && project.commit
 - css_class += " no-description" if project.description.blank? && !show_last_commit_as_description
 - cache_key = [project.namespace, project, controller.controller_name, controller.action_name, current_application_settings, 'v2.3']
-- cache_key.push(project.commit&.sha, project.commit&.status)
+- cache_key.push(project.pipeline_status) if project.pipeline_status.has_status?
 
 %li.project-row{ class: css_class }
   = cache(cache_key) do
     .controls
       - if project.archived
         %span.label.label-warning archived
-      - if project.commit.try(:status)
+      - if project.pipeline_status.has_status?
         %span
-          = render_commit_status(project.commit)
+          = render_project_pipeline_status(project.pipeline_status)
       - if forks
         %span
           = icon('code-fork')

spec/models/project_spec.rb

@@ -1916,4 +1916,15 @@ describe Project, models: true do
       end
     end
   end
+
+  describe '#pipeline_status' do
+    let(:project) { create(:project) }
+    it 'builds a pipeline status' do
+      expect(project.pipeline_status).to be_a(Ci::PipelineStatus)
+    end
+
+    it 'hase a loaded pipeline status' do
+      expect(project.pipeline_status).to be_loaded
+    end
+  end
 end